The one constant, other than Mason Mount who has also started every game for Graham Potter, has been Kepa Arrizabalaga.
Formations have changed, systems have been tweaked, rotation and tinker has been evident, Potter's first choice keeper might have changed from those before him.
It's a tough one to fully decipher. Perhaps if Edouard Mendy had been fit to play when Potter came in, he would be playing each game. Maybe the fact that Kepa played in Thomas Tuchel's last game had an impact too, keep things relatively simple, say.
